psych up

to prepare (oneself) mentally or emotionally <I have to psych myself up before every swimming competition> Synonyms brace, forearm, nerve, poise, fortify (up), ready, steel, strengthenRelated Words arm; harden, inure, season, toughen; bolster, boost, buoy (up), buttress, enforce, prop (up), reinforce (also reenforce), support, sustain; cheer (up), comfort, embolden, encourage, hearten, inspire; rally, rouse, stirNear Antonyms daunt, demoralize, discourage, dishearten, dispirit, fortify (out), shake, unnerve; debilitate, enervate, enfeeble, prostrate, sap, soften, tire, undercut, undermine, weaken